[v4] net/i40e: fix max frame size config at port level
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Commit Message
From: Wenxuan Wu <wenxuanx.wu@intel.com>
Previously, max frame size can only be set when link is up, and the wait
time is 1 sec. Startup time of 10G_BASET longer than 1s would result in
failure.
Acctually, max frame size of media type I40E_MEDIA_TYPE_BASET can be set
regardless of link status.
This patch omitted the link status check of 10G_MEDIA_TYPE_BASET.
Fixes: a4ba77367923 ("net/i40e: enable maximum frame size at port level")
Cc: stable@dpdk.org
Signed-off-by: Wenxuan Wu <wenxuanx.wu@intel.com>
---
drivers/net/i40e/i40e_ethdev.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)
Comments
> -----Original Message-----
> From: wenxuanx.wu@intel.com <wenxuanx.wu@intel.com>
> Sent: Wednesday, May 18, 2022 12:59 PM
> To: Xing, Beilei <beilei.xing@intel.com>; Zhang, Yuying
> <yuying.zhang@intel.com>; dev@dpdk.org
> Cc: Wu, WenxuanX <wenxuanx.wu@intel.com>; Zhou, YidingX
> <yidingx.zhou@intel.com>; stable@dpdk.org
> Subject: [PATCH v4] net/i40e: fix max frame size config at port level
>
> From: Wenxuan Wu <wenxuanx.wu@intel.com>
>
> Previously, max frame size can only be set when link is up, and the wait time is
> 1 sec. Startup time of 10G_BASET longer than 1s would result in failure.
>
> Acctually, max frame size of media type I40E_MEDIA_TYPE_BASET can be set
> regardless of link status.
>
> This patch omitted the link status check of 10G_MEDIA_TYPE_BASET.
>
> Fixes: a4ba77367923 ("net/i40e: enable maximum frame size at port level")
> Cc: stable@dpdk.org
>
> Signed-off-by: Wenxuan Wu <wenxuanx.wu@intel.com>
Added
Acked-by: Yuying Zhang <yuying.zhang@intel.com> from v3
Applied to dpdk-next-net-intel.
Thanks
Qi
@@ -12103,16 +12103,20 @@ i40e_set_mac_max_frame(struct rte_eth_dev *dev, uint16_t size)
uint32_t rep_cnt = MAX_REPEAT_TIME;
struct rte_eth_link link;
enum i40e_status_code status;
+ bool can_be_set = true;
- do {
- update_link_reg(hw, &link);
- if (link.link_status)
- break;
-
- rte_delay_ms(CHECK_INTERVAL);
- } while (--rep_cnt);
+ /* I40E_MEDIA_TYPE_BASET link up can be ignored */
+ if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
+ do {
+ update_link_reg(hw, &link);
+ if (link.link_status)
+ break;
+ rte_delay_ms(CHECK_INTERVAL);
+ } while (--rep_cnt);
+ can_be_set = !!link.link_status;
+ }
- if (link.link_status) {
+ if (can_be_set) {
status = i40e_aq_set_mac_config(hw, size, TRUE, 0, false, NULL);
if (status != I40E_SUCCESS)
PMD_DRV_LOG(ERR, "Failed to set max frame size at port level");